Fireplace gas heater



Maxx 6, 1923.

W. N. BEST.

FmEPLAcE GAS HEATER.

AFILED FEB.16,1920.

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Patented bi, lQLfln WILLAIFE N. BEST, OF BROGKLYN, NEW' YUR-K, ASSIGNOB, BY LVl'EQWE .iSSIGlll/IENTS, T W. N. BEST FURNACE AND BUR-NER CGR-POR-TIDIT, Oli' NEW? YORK, hl'. Y., A CORPORLTON OF NEW YORK.

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FIREPLCE GAS HEATER.

Application iled February 16, `1920. Serial No. 359,004.

To aZZ whom t may concern.' As shown all of the refractory lining is sup- Be it known that l, WILLIAM N. Bnsr, a ported by the bottom 14 and theend and 55 citizen of the United States, and a resident top parts lit against shoulders on the front of Brooklyn, in the county of Kings and and back parts so that no bolts or other State of New York, have invented certain Securing means are necessary for holding new and useful Improvements in Fireplace the lining in position. `Between each metal Gas Heaters, of which the following is a wall and its corresponding refractory lin- 60 specification. ing there is inserted a non-combustible heat This invention is an improved gas heater insulating packing, such for instance, as an particularly designed for use in fireplaces asbestos layer 19. t

vand as a substitute for an improvement on The bottom of the chamber has comparathe Ordinary gas log. Among the important tively large air inlet openings 20 and di- 65 objects of my invention are to secure perfect reotly above these is the gas burner 21. combustion of the gas, permit the gases of This is shown as a single straight pipe procombustion to pass up the chimney without jecting lengthwise of the combustion chammaterial loss of heat, to provide a heat abber midway between the front and bach sorbing and radiating surface whereby the walls of the chamber. This burner pipe may 70 lheating effect of the burning gas is eciently have a series of gas outlet openings along utilized and to effectively seal the fire place the length thereof and, if desired, each open "opening whereby escape of warm air up the ing may have a lava tip 22 to aid in the s'echimney is prevented when the heater is not curlng of perfect combustion. in operation. The openings E23 in the top wall 13 andthe 75 My invention in its preferred form is very corresponding refractory lining 18 are simple in construction, involves inexpensive smaller than the space between said open- 25 parts easily assembled and presents an atings, and disposed on the upper surface` of tractive appearance. i the top wall is a damper in the form of a .ln the accompanying drawings: longitudinal movable strip or plate 2li hav- 80 Figure 1 is a front elevation showing the ing openings 25 which may be moved into heater in position in a fire place opening, a or .out of registry with the openings v portion of the heater being broken away; This damper may have a forwardly extend- Figure 2 is a vertical transverse section lng handle or other operating member 26 through the heater and adjacent fire place to facilitate the lengthwise movement of 85 parts; and the damper and said movement may be Figure 3 is a top plan view of a heater on gulded by upstanding lugs or flanges on the a slightly larger scale, a portion-being shown top wall 13. p

in horizontal section. rlhe front wall 12 and its refractory linln the form shown the heater includes a ing has a comparatively large number of 90 rectangular box or combustion chamber inheat outlet openings 27 which may be of any cluding a substantially imperforated metal desired form and shape, andarranged in any back wall 10, substantially imperforated desired order to give an artistic or attractive metal vertical end walls 11, reticulated appearance. rlhe top wall 13 preferably metal front wall 12 and reticulated metal projects forwardly beyond the front wall 95 top and bottom walls 13 and 14. These may 12 so as to form a heat deflector 28 tending be. made of heavy sheet metal or cast iron to throw the heat out into the room rather plates and may be secured together in any than permit of its direct upward movement suitable manner, as for instance, by flanging along the front' of the lire-place casing. and bolts or rivets, The bach, front, ends Also the openings `27 in the refractory lin- 100 and top of thev bof; or combustion chamber ing may extend in a downwardly direction have linings of refractory metal. As shown, so as to also aid in deiiecting the heat down 5o there are front and back lining plates 15 and toward the floor of the room.

16 supported on the bottom 1li andheld rlhe heater maybe. made of any desired spaced apart by the refractory end lining size to freely within a fire-place opening walls i7 and the refractory top wall 18. and is preferably supported upon suitable legs 29 whereby the air may freely enter the bottom of the combustion chamber. Also the top is preferably spaced some little distance below the upper side of the fire-place' openinor so as to permit deflecting the gases of combustion in toward the chimney. 1n connection with the construction hereinbefore described, I preferably employ a closure plate 30 formed of comparatively stiff sheet metal and cut of al length and width so as to closely fit the top, bottom and sides of the lire-place and to form a fairly tight closuretherefor. This closure plate 30 has an opening 31 therein at a point above the top wall 13, and secured to the front lside of the closure plate 30 is a bonnet or hood 32 projecting forwardly over the top of the heater. This bonnet is connected lto the closure plate along the top and ends of the opening 31 and has an open lower side directly over the gas outlet openings 23 and damper 2&1 ofthe gas heater. The lower front edge of the bonnet may engage directly with the top wall 13 in front of the damper and may have an opening through which the damper handle 26 extends. rlhe closure plate and bonnet may be made sepa rate from the heater and separately installed, or theplate 30 may be directly secured to the back of the heater so as to forma unitary structure therewith. yln practice the gas heaters may be made in a comparatively few standard sizes and the closure plates may be cut to fit the particular lire-place openings, but with the opening 31 and bonnet 32 properly positioned to co-V operate with the heater.

1n my improvedL con'structionthe necessary air to Asupport the combustion may enter through the openings 20 and the gas r may be burned with approximately coin- `fractory `bustion of the gas.

plete combustion. The refractory lining of the combustion chamber will become heated to a very high temperature and this heat will be radiated out through the front openings 28. Furthermore the heat of the relining will aid in the perfect com- As is well known, illuminating gas as well as natural gas often contains sulphur compounds or other ingredients, the coinbustion of which produces objectionable gases. In my improved construction the damper 2li may be opened to a sufficient extent to permit the escape of the gases of combustion from the burner but without per mitting any material inflow of air through the opening 28 and escape Aof this heated air up the chimney. When the gas is turned off, the damper 24 may be closed and all of the heat of the refractory lining will be radiated out into the room rather than permitted to escape by a current of air past the lining up the chimney. Under ordinary conditions when the heater is not in use the damper 24 may be closed to prevent loss of warm air from the room, or may be opened to permit ventilation.

Havingthus described my invention what l claim as new and desire to secure by Letters Patent is:

1. A lire place gas heater including a substantially rectangular combustion chamber adapted to be disposed within a fire place and having an apertured front wall for the escape of heat, an apertured top wall for the escape of gases of combustionand a substantially imperforate rear wall, all of said walls being lined with refractory material, a burner within said chamber and extending lengthwise thereof at the lower portion, a closure plate in the 'rearof and 'independent of said combustionl chamber, the 'fire-` and end walls, said chamber havingair in-` let openings in the bottom thereof, heat radiating openings in the front wallv thereof, a damper controlled outlet in the top for gases of combustion, anda hood project-ing over said outlet for directing the gases Aof combustion to the rear of the closure plate.

3. A fire-place gas heater including a substantially rectangular combustion chamber adapted to be disposed within a nre-'place having parallel front` and back walls lined with refractory material, a gas burner pipe extending lengthwise of said chamber between and spaced from said walls, said back wall being substantially imperforated, and

said front wall having heat outlet openings and a fireplace closure plate in the rear of said chamber and having means projecting over the top of said chamber for receiving gases of combustion from thel latter and directing them toward the fire-place chimney.

4. A fire-place gas heater including a substantially rectangular y combustion chamber adapted to be disposed within a fire-place having an imperforated back wall and a reticulated frcnt wall, refractory linings for l said walls, refractory linings for the end and top walls and serving to space the first mentioned refractory linings apart, the top' wall ofsaid chamber having a damper controlled outlet therein and a forwardly pro- `jecting heat deflecting baffle.

5. A fireplace gas heater including a sub- 'stantially rectangular combustion chamber heater and having an opening therethrough 10 above the top wall 0f the heater and a hood extending forwardly and downwardly over the exhaust gas outlet of the heater.

Signed at New York city in the county of New York and State of New York, this 15 13th day of February, A. D. 1920.

WILLIAM N. BEST. 

